Specifications

Transtig 200Pi, 250Pi, 300Pi
15
NOTE 2
Due to variations that can occur in manufactured products, claimed performance, voltages, ratings, all capacities,
measurements, dimensions and weights quoted are approximate only. Achievable capacities and ratings in use and
operation will depend upon correct installation, use, applications, maintenance and service.
6.1 Weld Parameter Ranges and Controls
a) Weld Process selection for Transtig 200Pi, 250Pi, 300Pi
Weld Mode
Weld Process
Selection
STICK
HF
TIG
LIFT
TIG Description
STD
ü ü ü
2T operation in TIG Modes
SLOPE
û ü ü
4T operation in TIG Modes with crater fill
REPEAT
û ü ü
4T operation in TIG Modes with repeat operation
and crater fill
SPOT
û ü û
2T operation spot welding in HF TIG
PULSE
ON/OFF
û ü ü
Pulse operation in TIG Modes
Table 2 - Weld Process selection verses Weld Mode for Transtig 200Pi, 250Pi, 300Pi
b) Weld Parameter Descriptions for Transtig 200Pi, 250Pi, 300Pi
Parameter Description
PRE-FLOW
This parameter operates in TIG modes only and is used to get gas to the weld
zone prior to striking the arc, once the torch trigger switch has been pressed. This
control is used to dramatically reduce weld porosity at the start of a weld.
HOT START
This parameter operates in all weld modes and is used to heat up the weld zone in
TIG modes or improve the start characteristics for stick electrodes. e.g. low
hydrogen electrodes . It sets the peak start current on top of the BASE (WELD)
current.
e.g. HOT START current = 150 amps when BASE (WELD) = 100 amps &
HOT START = 50A
INITIAL CUR.
This parameter operates in SLOPE or REPEAT (4T) TIG modes only and is used
to set the start current for TIG. The Start Current remains on until the torch
trigger switch is released after it has been depressed.
UP SLOPE
This parameter operates in TIG modes only and is used to set the time for the
weld current to ramp up, after the torch trigger switch has been pressed then
released, from INITIAL CUR to PEAK or BASE current
PEAK CUR.
This parameter sets the PEAK weld current when in PULSE mode
BASE (WELD) TIG
This parameter sets the TIG WELD current in STD, SLOPE, REPEAT and SPOT
modes when PULSE is off. This parameter also sets the BASE (background) weld
current when PULSE is on.
BASE (WELD)
STICK
This parameter sets the STICK weld current.
SPOT TIME
This parameter sets the duration of the SPOT TIME in HF TIG mode only
PULSE WIDTH
This parameter sets the percentage on time of the PULSE FREQUENCY for
PEAK weld current when the PULSE is on.
PULSE FREQ.
This parameter sets the PULSE FREQUENCY when the PULSE is on.